How do POOL BLOCKS and POOL DROPS Plus work?
The natural trace element copper has beenused for centuries to inhibit algae growth and has been used for many decades as the active constituent of hundreds of algicide products available worldwide. Our high performance products also include a complex blend of non-active ingredients which result in the active copper ions being very readily absorbed by the algae cells at low levels (just 0.4 to 0.8 ppm). This low level is in line with both the Australian and World Health Organisation recommendations for drinking water at 1.0 ppm and also private swimming pool water quality (AS3633-1989) also at 1.0 ppm. Naturally occurring copper is an essential human nutrient found in hundreds of food items such as nuts, beans, peas, chocolate and fruit juices at higher levels between 1.0 and 20 parts per million.
